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Lawnmower starts but won't continue to run

After I prime the engine, it starts right away but dies immediately. I've replaced the intake manifold, fuel line, and air filter. Took carb apart and cleaned with carb cleaner. Blew every line out using my air compressor. Added Sea Foam to the gasoline. When I check the sparkplug, it's completely dry.

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If you are getting no fuel to the plug you either have a stuck float, plugged fuel line or filter. does the gas reach the carb bowl? does the mower have a fuel pump? if so the diaphram might be bad.

Posted on Jul 08, 2009


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I am guessing that you have to prime it to start it. Is that correct? If so, then it starts on the prime and then dies right away. Then the next thing is whether or not the carburetor is mounted on the fuel tank or separately. If it is mounted on the tank, then you will need to replace the diaphram between the two. If the carburetor is mounted separately, then you will need to remove the carburetor to clean and inspect it. With this set up the float and needle are somehow stuck or you have a hole that is plugged.

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